barnard



Patented July 5, I898.

H. A. BARNARD.

RICE HULLING AND POLISHING MACHINE.

(Application filed Sept. 13, 1897.)

5 Sheets-Sheet I.

(No Model.)

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H. A. BARNARD.

RICE HULLING AND POLISHING MACHINE.

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(Appllczmon filed Sept. 13, 1891.) N 0 M 0 t I 6 l 5 S l 1 8 e t S S h BB f 5 v mllllfl WNW!" EWWIWEQM Illl uummiih lmw ml! I IIEMAN A. BARNARD,OF MOLINE, ILLINOIS, ASSIGNOR TO THE BARNARD & LEAS MANUFACTURINGCOMPANY, OF SAME PLACE.

RICE HULLING AND POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 606,909, dated July 5,1898.

Application filed September 13, 1897- Serial No. 651,524. (No model.)

To all whom it may concern:

Be it known that I, HEMAN A. BARNARD, of Moline, in the county of RockIsland and State of Illinois, have invented certain new and usefulImprovements in Rice Hulling and P01- ishing Machines; and I herebydeclare that the followingis a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, which formpart of this specification.

This invention is an improvement in machines for hulling and polishingrice, adapted to clean the rice ready for market at one operation, andespecially designed for plantation use.

The hulling operation is preferably performed by mechanism alreadypatented to me in United States Patent No. 586,090, dated July 13, 1897;and the present invention relates more particularly to the polishing andscreening mechanism.

The invention therefore consists in the novel construction andcombination of parts hereinafter claimed, and the accompanying drawingsillustrate a machine embodying my invention in the best form now knownto me.

Referring to said drawings, Figure 1 is a perspective view of mycomplete plantationmill for hulling and polishing rice. Fig. 2 is anelevation, partly in section, of one end of the machine. Fig. 3 is asimilar elevation of the other end of the machine, partly in section.Fig. 4 is a rear side elevation of the machine, partly in section. Fig.5 is an end view showing the drive of the mill. Figs. 6 and 7 are detailviews of the metal heads of the screen-casing. Fig. 8 represents detailfront and side views of one of the ends of the polishing-drum. Fig. 9 isa detail view of the polisher-casing detached. Figs. 10 and 11 are sideand sectional views of the polishing-drum detached. Fig. 12 is a detailview of the discharging portion of the polisher.

Referring to said drawings by letters, A designates the rice-huller,constructed substantially as shown and described in my aforesaid patent,to which I refer for more particular description thereof. Said huller ismounted upon a stout frame IV, supporting and containing the remainderof the apparatus. The

huller has a feed-hopper A at one end and a discharge a at the other, acone B, mounted on a driven shaft 13, and a bottom screen 0, be-

low which is a chute-board O, by which the scourings from the huller aredischarged to one side of the frame W, as indicated in the drawings. Thehulled and scoured rice is discharged through a into a spout a, whichconducts it into one leg d of an inverted-U- shaped air-trunk D, and itfalls through leg d onto a spout cl, by which it is led into thereceiving-mouth g in one end of the polishing-casin g, hereinafterdescribed. The other leg of trunk D leads into a fan-casing E, in whichis a fan F, mounted on a shaft f, journaled in suitable bearingsattached to the rear uprights of frame WV, as shown. The fan is sorotated as to draw a current of air through trunk D in such direction asto subject the rice falling through leg d to an upward current of air,by which lighter impurities are separated from the rice and dischargedthrough the mouth e of fan-casing E into the room or into a suitableconductor or receiver. (Not shown.)

The polishing-casing is constructed of four parts-to wit, areceiving-head Gr, opposite semicylindrical frames H H, and adischargehead I. The head G (see Fig. (3) is parted vertically, and eachhalf has a semicylindrical flange g, projecting from a square or rectangular base portion g, and in one flange g is a vertical receiving-mouthg as shown. At the meeting ends of flanges g are short vertical flangesg perforated for the passage of securing-bolts, as shown, by which theparts of the heads are united. The head I is constructed similarly tohead G, (see Fig. 7,) with base i, semicircular flanges g, and verticaluniting-flanges i One part of head I is provided with a discharge-spouti which is arranged horizontally instead of vertically. The frames H arepreferably made of wood, parted on vertical lines, and united by bolts,being provided with wire or reticulated metal screens II, as shown. Thepolishing-casing lies directly underchute 0. Heads Glare secured inplace by bolting portions g t" to the ends of the casing IV, as shown.II II are supported on the opposite heads, being bolted together, sothat their ends embrace and clamp annular flanges g 2' on the inner endsof heads G and I, as'shown. This construction of polishing-casing issimple and durable and facilitates cleaning thereof and repairing ofworn parts.

IOO

lVithin the polisher-easing is the polishingdrum, which is also composedof three principal pa-rtsto wit, a cylindrical body J, preferablyofwood, and metal heads K and L at the ends thereof, as shown, the headsbeing fastened on a supporting-shaft M, which extends axiallytherethrough and is journaled in suitable hearings on frame W outsidethe polisher-casing, as shown. IIead L fits within the part G of thecasing and is provided with inclined feed-blades L on its periphery.I'Iead K fits within part I of the casing and is provided with inclineddischarge blades or ribs K on its periphery, as shown. The surface ofbody J is covered or shingled with leather straps j, as shown, whicheffect the polishing of the rice as it passes through thepolishing-casing from mouth 5/ to dischargespout The operation of thepolisher will be readily understood by those familiar with the art.

The discharge-spout i leads the cleaned grain into the lower end of oneleg at of an inverted-U-shaped air-trunk N, the other end of which leadsinto the fan-casin g E, as shown at the side opposite leg D. Thepolished rice falling through leg 01 is discharged into any suitablereceiver or conductor, while the dust, scourings, &c., are sucked upthrough leg n and discharged through the fan-casing.

The screenings falling through screens II are collected upon the flooror in a suitable receiver, and, if desired, may be kept separate fromthe scourings discharged from the huller.

Both air-trunks I) and N are provided with usual regulating-valves, asindicated in the drawings.

Power is applied to pulley b on shaft 13. It is transmitted from apulley b on shaft B through a belt m to a pulley m 011 shaft M and froma pulley m on shaft 171 through belt m to a pulley f on shaft f, asindicated in Fig. 5 of the drawings.

From the foregoing it will be seen that the rice fed into hopper A ishulled and then discharged into trunk D, where it is subjected to anair-blast. Thence it passes into the polisher, where it is furtherabraded, cleaned, and polished, and finally discharged into airtrunk N,where it is subjected to another airblast and discharged perfectly cleanand polished, while the screenings are discharged onto the floor or intoa suitable chute or re ceptacle, and the dust from the trunks isdischarged from the fan-casing.

llaving thus described my invention, what I therefore claim as new, anddesire to secure by Letters Patent thereon, is

1. The hereindescribed polisher screencasing, comprising the verticallydivided metal heads each formed of opposite vertically-divided halvesprovided with projecting semicylindrical flanges on their inner faces,the opposite heads being also respectively provided with inlet anddischarge openings in said flanges,said openings beingloeated above theaxis of the polisher-casing and semicylindrical screen-frames fitted onand secured to the flanges of said heads, for the purpose andsubstantially as described.

2. The herein-described screen-casing c011- sisting of thesemicylindrical frames lI carrying screens II, and the opposite metallicheads I and G each formed of two vertical parts, each part having asemicircular flange on its inner side, head Gr being also provided withan inlet g and head I with an outlet t all substantially as and for thepurpose described.

3. The herein-described polishing-drum, consisting of a centralcylindrical wooden body .l shingled with leather straps j, andcylindrical metallic heads K and L fitted on the ends of the body andsupporting the latter upon the shaft and respectively providedwithinclined peripheral feed and discharge ribs or blades K and L, for thepurpose and substantially as described.

l. The combination with a polisher, having inlet and discharge openings,a fan-casing beside the polisher, a pair of inverted- U -shapedair-trunks respectively located on opposite sides of the fan-casing andbeside the feed and discharge ends of the polisher, one leg of eachair-trunk comm unicating with the fanca-sing, and one leg of oneair-trunk communicating with a spout leading to the feed-inlet of thepolisher, and one leg of theother airtrunk communicating with thedischarge-outlet of the polisher; said discharge-outlet being at oneside of the polisher-casing and above the axis thereof with means forintroducing grain to be polished into the leg of the air-trunkcommunicating with the feed opening of the polisher, all constructed andarranged, substantially as described.

5. The combination of a polisher having a cylindrical wire screen andhollow heads respectively having inlet and discharge openings, afan-casing beside the polisher, a pair of inverted- U -shaped air-trunksrespectively located on opposite sides of the fan-casing and beside thefeed and discharge ends of the polisher, one leg of each air-trunkcommunicating with the fan-casing, and one leg of one air-trunkcommunicating with a spout leading to the feed-inlet of the polisher,and one leg of the other air-trunk communicating With thedischarge-outlet of the polisher, said discharge-outlet being at oneside of the polishercasing and above the axis thereof with means forintroducing grain to be polished into the leg of the air-trunkcommunicating with the feed-opening of the polisher, all constructed andarranged, substantially as described.

In testimony that I claim the foregoing as my own I afiix my signaturein presence of two witnesses.

IIEMAN A. BARNARD.

In presence of- J. S. LEAS, A. II. Josnrn.

